UPD2: V2 version for more even tailcap lighting added

UPD: thing was tested and works pretty nice. Also added version without holes in case you decide to print with transparent filament.

My transparent washer is broken so i designed my own bushing. I have no transparent filament so my print not diffuse the light. Use transparent PETG for better result.

Thing isn't tested yet and probably can be deformed because of heat and screw pressure.

P.S. Your lighted tailcap modules construction can be different.